Table 1 Parameters characterizing the orientation and depth of insertion of the CYP globular domain in the membrane bilayer, as well as the orientation of the TM-helix in the bilayer, in AA MD simulations for three CYP isoforms with GAFF-LIPID + ff99SB and with LIPID14 + ff14SB.

From: The Effect of Force-Field Parameters on Cytochrome P450-Membrane Interactions: Structure and Dynamics

CYP Isoforms

CYP 2C9

CYP 2C19

CYP 1A1

Force fields

GAFF-LIPID +ff99SB

LIPID14 + ff14SB

GAFF-LIPID +ff99SB

LIPID14 + ff14SB

GAFF-LIPID +ff99SB

LIPID14 + ff14SB

Computed Parameters

Protein CoM to membrane CoM distance (Å)

40.3 ± 0.7

38.6 ± 0.9

45.5 ± 1.5

43.2 ± 0.9

46.2 ± 1.7

46.1 ± 2.6

36.0 ± 0.7

40.2 ± 1.2

40.6 ± 1.5

42.3 ± 1.6

Heme tilt angle (o)

33.1 ± 3.7

28.6 ± 4.4

43.2 ± 4.8

42.1 ± 3.7

47.2 ± 4.5

60.5 ± 4.5

66.1 ± 2.9

51.4 ± 4.5

54.8 ± 6.1

53.5 ± 4.2

α angle (o)

92.1 ± 2.4

79.4 ± 3.4

74.8 ± 4.3

76.8 ± 2.9

81.4 ± 4.4

106.3 ± 4.2

95.8 ± 1.6

96.4 ± 4.6

109.7 ± 4.6

85.0 ± 5.6

β angle (o)

113.2 ± 2.5

112.2 ± 2.8

119.9 ± 4.5

122.7 ± 3.4

129.2 ± 3.8

148.6 ± 5.1

145.5 ± 1.7

135.8 ± 4.9

149.0 ± 2.9

121.2 ± 4.8

TM-helix tilt angle (o)

17.9 ± 3.8

15.6 ± 3.3

11.9 ± 5.3

7.4 ± 4.1

14.4 ± 3.7

25.4 ± 7.8

28.4 ± 2.6

22.6 ± 4.4

23.4 ± 4.3

21.9 ± 5.3

  1. Means and standard deviations were computed over the last 50 ns of each MD production trajectory. For cases where two replica simulations were performed, the values for the longer simulation are given followed by those of the shorter simulation in italic. Trajectory lengths are given in Table 2.